diff --git a/tests/army/storage/blob/s3Basic.json b/tests/army/storage/blob/s3Basic.json
index ee341b2096..2b911a989f 100644
--- a/tests/army/storage/blob/s3Basic.json
+++ b/tests/army/storage/blob/s3Basic.json
@@ -20,7 +20,7 @@
                 "replica": 1,
                 "duration":"10d",
                 "s3_keeplocal":"30d", 
-                "s3_chunksize":"131072",
+                "s3_chunkpages":"131072",
                 "tsdb_pagesize":"1",
                 "s3_compact":"1",
                 "wal_retention_size":"1",
diff --git a/tests/army/storage/blob/s3Basic1.json b/tests/army/storage/blob/s3Basic1.json
index 02be308443..087f89edec 100644
--- a/tests/army/storage/blob/s3Basic1.json
+++ b/tests/army/storage/blob/s3Basic1.json
@@ -20,7 +20,7 @@
                 "replica": 1,
                 "duration":"10d",
                 "s3_keeplocal":"30d", 
-                "s3_chunksize":"131072",
+                "s3_chunkpages":"131072",
                 "tsdb_pagesize":"1",
                 "s3_compact":"1",
                 "wal_retention_size":"1",